For link building purposes what is the percentage of links I want pointing to the main webpage vs. the rest of the site? Why? Good explanations will be rewarded with reputation.
this is not fixed. you have to find out a important page and a profitable page for you. then make maximum link for that page
Typically your homepage will naturally get lots of links from directories or sites linking to you without asking them. Links to pages deeper in your site are harder to get because people do not naturally link there unless they want to highlight a specific article or page. Since most sites link to your homepage, this page typically has the highest page rank on your site so the link juice flows out internally from the homepage to the other pages deeper down in the architecture. If an internal page is 2 or 3 clicks away from the homepage, then the amount of link juice flowing to it from the homepage will be diminished quite a bit by the time it gets to that page. So a link to the homepage may only be passing a fraction of its original link juice by the time it gets to the deep internal page. But by getting a backlink directly to a deep page in your site, the full link juice will be credited to that deeper page so its page rank profile will be better. So since most people will naturally link to your homepage, it is always good to get links to deeper pages on your site whenever possible since it can be more difficult to get those pages to rank well.
use this block of code quite often. Almost every project I develop has a login page and I always toss this in to give it that subtle boost to the overall user experience. There are two ways to do this. You can add a TARGET="_blank" to the <a>-tag, but this simply opens a new browser window that completely obscures the old one. Usually programmers place their JavaScript code in the HTML such a way that the code is run only after all the elements in the page is loaded.